Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 1 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/21/2021   15:26:01   (   0.02, -75.22) (  -0.30, -73.78)  163.49                80
 01/22/2021   03:47:25   (   0.01, -75.20) (  -0.80, -78.97)  429.64                80
 01/23/2021   15:13:49   (  -0.01, -75.22) (  -0.95, -70.83)  499.07                80
 01/24/2021   03:35:13   (   0.01, -75.20) (  -0.15, -76.02)   93.41                80
 01/26/2021   03:20:20   (   0.00, -75.20) (   0.44, -73.06)  243.24                80
 01/26/2021   15:41:36   (  -0.00, -75.22) (   0.60, -78.22)  341.01                80
 01/28/2021   15:29:23   (  -0.00, -75.23) (   0.01, -75.26)    3.93                80
 01/30/2021   15:19:51   (  -0.00, -75.24) (  -0.65, -72.31)  333.64                80
 01/31/2021   03:41:14   (   0.00, -75.22) (  -0.50, -77.49)  258.13                80
 02/02/2021   03:26:22   (   0.00, -75.24) (   0.16, -74.54)   80.17                80